Triangle Square: A Premier Investment Opportunity in Costa Mesa, Orange County

Nestled at the gateway to Newport Beach, Triangle Square is an iconic dining and entertainment center in Costa Mesa, now available for sale. Spanning 194,241 square feet, this prominent retail destination has witnessed heightened leasing interest since the pandemic, making it a tantalizing prospect for investors looking to capitalize on Orange County’s thriving retail market.

A Prime Location on the Costa Mesa Freeway

Triangle Square, located at 1870 Harbor Blvd., boasts a strategic position at the terminus of the Costa Mesa Freeway, which sees around 96,000 vehicles daily. This high traffic volume funnels potential customers directly to the center, enhancing its appeal for both dining and entertainment. Anchored by significant establishments, including a 24-Hour Fitness Super Sport and an 8-screen movie theater, Triangle Square features a diverse mix of dining options, such as Yard House, OJI Sushi, and Café Sevilla. Additionally, it hosts Time Nightclub, Orange County’s only fully zoned nightclub, creating a vibrant atmosphere that appeals to both locals and visitors.

Strong Market Conditions and Low Vacancy Rates

Orange County’s retail sector has demonstrated remarkable resilience, with the overall vacancy rate dropping to 3.2 percent in Q4 2025. This figure, reported by Cushman & Wakefield, places the region well below the national shopping center vacancy rate of 5.7 percent. In parallel, the area has experienced steady rental growth, with average asking rents rising to $2.65 per square foot—a modest increase indicating a strengthening market. This positive trend is bolstered by a notable net absorption of retail space, which exceeded deliveries, indicating high tenant demand and investment stability in the region.

Robust Investment Activity in Orange County

Investment activity within Orange County shopping centers is surging, doubling in volume compared to early 2024. According to Matthews Real Estate Investment Services, cap rates for retail transactions typically range between 5 and 6 percent, with premium modernized and Class A centers trading below the 5 percent threshold. This vibrant investment landscape makes Triangle Square an attractive target for investors, offering a unique opportunity to capitalize on both current market stability and future growth potential.

Demographics and Rental Opportunities

The demographics surrounding Triangle Square present a compelling case for investment. Within a 5-mile radius, approximately 340,247 residents have an average household income nearing $168,801, indicating a wealthy consumer base. Furthermore, current rents within the center are reported to be over 12 percent below prevailing market rates. This disparity opens the door for investors to realize additional income through lease adjustments, estimated at over $2.2 million in the next decade, as they align rents with the market.

Resilient Tenant Mix and Enhanced Leasing Momentum

The center’s tenant composition is largely centered on experiential and service-oriented businesses, which continue to flourish despite the growing e-commerce landscape. Catering to shifting consumer preferences, the property has seen approximately 15 percent of its available space leased post-pandemic, showcasing resilience and a robust demand for such retail formats. Southern California’s commercial landscape reflects a similar trend, with an emphasis on smaller stores, quick-service restaurants, and other internet-resistant businesses, ensuring high foot traffic and steady revenue flow.

A History of Resilience and Future Growth Potential

Originally opened in 1992, Triangle Square has undergone various ownership transitions and economic challenges. A significant renovation in 2012 revitalized the property, and subsequent owners have continued to optimize the tenant lineup. The center features a well-structured multi-level parking facility, enhancing convenience in this densely populated coastal area. Additionally, an assumable loan of approximately $38.7 million at a favorable interest rate of 4.46 percent is available, further amplifying the investment’s attractiveness. With Orange County’s retail fundamentals remaining strong and investor interest in experiential retail on the rise, Triangle Square stands as a testament to the enduring value of coastal entertainment assets poised for future growth.

As the retail landscape continues to evolve, Triangle Square offers an unparalleled chance for investors to enter a thriving market. Whether seeking immediate revenue generation through established tenants or long-term growth from well-positioned, experiential retail spaces, Triangle Square represents a highly strategic investment opportunity in the heart of one of Southern California’s most vibrant areas.